Sensing properties of femtosecond laser-inscribed long period gratings in photonic crystal fiber


The use of near infrared, high intensity femtosecond laser pulses for the inscription of long period fiber gratings in photonic crystal fiber is reported. The formation of grating structures in photonic crystal fiber is complicated by the fiber structure that allows wave-guidance but that impairs and scatters the femtosecond inscription beam. The effects of symmetric and asymmetric femtosecond laser inscriptions are compared and the polarization characteristics of long period gratings and their responses to external perturbations are reported.

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Uncontrolled Keywords: fiber gratings, femtosecond laser inscription, photonic crystal fiber, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Publication ISSN: 1674-9251
Last Modified: 23 Oct 2019 11:49
Date Deposited: 14 Jun 2011 10:49
Published Date: 2011-09
Authors: Kalli, Kyriacos
Allsop, Thomas D.P.
Zhou, Kaiming
Smith, Graham
Komodromos, Michael
Webb, David J.
Bennion, Ian


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